C#特殊字符处理
2009年12月15日 星期二 23:34
private static Regex RegNumber = new Regex("^[0-9]+$");
private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$");
private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$");
private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等价于^[+-]?\d+[.]?\d+$
private static Regex RegEmail = new Regex("^[\\w-]+@[\\w-]+\\.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或数字的字符串，和 [a-zA-Z0-9] 语法一样
private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");
#region//对入库字符进行编码和转换。或用Server.HtmlEncode(enstr)
public static string EncodeStr(string str)
{
str=str.Replace("'","’");
str=str.Replace("\"",""");
str=str.Replace("<","<");
str=str.Replace(">",">");
str=str.Replace("\n","<br>");
return str;
}
#endregion
#region//对出库字符进入显示时的转换。或用Server.HtmlDecode(str)
public static string DecodeStr(string str)
{
str=str.Replace("’","'");
str=str.Replace(""","\"");
str=str.Replace("<","<");
str=str.Replace(">",">");
str=str.Replace("<br>","\n");
return str;
}
#endregion
数字字符串检查
/// <summary>
/// 是否数字字符串
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
public static bool IsNumber(string inputData)
{
Match m = RegNumber.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否数字字符串 可带正负号
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
public static bool IsNumberSign(string inputData)
{
Match m = RegNumberSign.Match(inputData);
return m.Success;
}
/// <summary>
/// 是否是浮点数
/// </summary>
/// <param name="inputData">输入字符串</param>
/// <returns></returns>
public static bool IsDecimal(string inputData)
